Acoustic speaker



FIG. 1 is a front view of an acoustic speaker.

FIG. 2 is a rear view thereof.

FIG. 3 is a right side view thereof.

FIG. 4 is a left side view thereof.

FIG. 5 is an elevational view thereof, showing the front and right sides.

FIG. 6 is an elevational view thereof, showing the front and left sides.

FIG. 7 is a top view thereof.

FIG. 8 is a bottom view thereof.

FIG. 9 is a perspective view thereof, showing the top, front and right sides.

FIG. 10 is a perspective view thereof, showing the top, front and right sides; and,

FIG. 11 is a perspective view thereof, showing the bottom and right sides.

The broken line showings of bottom details in FIGS. 8 and 11 illustrate portions of the acoustic speaker that form no part of the claimed design. 

CLAIM The ornamental design for an acoustic speaker, as shown and described. 